User Manual

2-21
5. Numerical Calculations
The following explains the numerical calculation operations included in the function menu
displayed when K4(CALC) ( 3(CALC) on the fx-7400G
II ) is pressed. The following
calculations can be performed.
• { Int÷ } / { Rmdr } / { Simp } ... {quotient}/{remainder}/{simplification}
• { Solve } / {
d / dx } / { d
2
/ dx
2
} / { ∫ dx } / { SolvN } ... {equality solution}/{differential}/{quadratic differential}/
{integration}/{
f ( x ) function solution}
• { FMin } / { FMax } / { Σ ( } / { log
a
b } ... {minimum value}/{maximum value}/{summation}/{logarithm
log
a
b}
k Quotient of Integer ÷ Integer [OPTN] - [CALC] - [Int÷]
The “Int÷” function can be used to determine the quotient when one integer is divided by
another integer.
Example To calculate the quotient of 107 ÷ 7
AbahK4(CALC) * 6( g)
6( g) 1(Int÷) h
w
* fx-7400G
II : 3(CALC)
k Remainder of Integer ÷ Integer [OPTN] - [CALC] - [Rmdr]
The “Rmdr” function can be used to determine the remainder when one integer is divided by
another integer.
Example To calculate the remainder of 107 ÷ 7
AbahK4(CALC) * 6( g)
6( g) 2(Rmdr) h
w
* fx-7400G
II : 3(CALC)
k Simplification [OPTN] - [CALC] - [Simp]
The “ 'Simp” function can be used to simplify fractions manually. The following operations can
be used to perform simplification when an unsimplified calculation result is on the display.
• { Simp } w ... This function automatically simplifies the displayed calculation result using the
smallest prime number available. The prime number used and the simplified result are
shown on the display.
• { Simp }
n w ... This function performs simplification according to the specified divisor n .